Use Figure 2 to answer the question. 7. Which of the following statements is true? (1 point) - *m angle LSO + m angle MSO = 180 degrees *angle LSM congruent to angle NSM
*m angle LSM + m angle SML + m angle MLS = 360 degrees
*m angle NSO + m angle OSL + m angle LSM + m angle MSN = 360 degrees ​

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.